Abstract: The present invention relates to a method and arrangement in a transmitter unit of a multi-antenna system for an improved calculating of the antenna weights for a beamforming transmission of data from a transmitter unit to a target receiver unit, whereby interfering signal components for receiving units other than the target receiving unit and the desired communication signal at a target receiving unit are weighted by receiver-specific parameters describing the receiver capabilities of said units in terms of their capability for interference suppression and/or signal enhancement. The invention also relates to a method and arrangement for scheduling of user equipments by using said information on the signal processing capabilities for received signals of each receiving unit.

Abstract: Apparatus in a wireless telecommunications system comprises at least a first antenna of a first polarization and a second antenna of a second polarization. The apparatus additionally comprises a receiver and a transmitter, and is intended for communication with at least one other device in the wireless telecommunications system. The apparatus is equipped with a polarization estimator for estimating the polarization state of a signal which is received from the one other device, and a polarization controller for adapting the polarization state of signals transmitted from the apparatus to the one other device on the basis of the estimate of the received signal.

Abstract: The present invention relates to a method and arrangement in a transmitter unit of a multi-antenna system for an improved calculating of the antenna weights for a beamforming transmission of data from a transmitter unit to a target receiver unit, whereby interfering signal components for receiving units other than the target receiving unit and the desired communication signal at a target receiving unit are weighted by receiver-specific parameters describing the receiver capabilities of said units in terms of their capability for interference suppression and/or signal enhancement. The invention also relates to a method and arrangement for scheduling of user equipments by using said information on the signal processing capabilities for received signals of each receiving unit.

Abstract: The invention discloses an apparatus in a wireless telecommunications system, comprising at least a first antenna of a first polarization and a second antenna of a second polarization. The apparatus additionally comprises a receiver and a transmitter, and is intended for communication with at least one other device in the wireless telecommunications system. The apparatus is equipped with means for estimating the polarization state of a signal which is received from the one other device, and the apparatus additionally comprises means for adapting the polarization state of signals transmitted from the apparatus to the one other device on the basis of said estimate of the received signal.

Abstract: A wireless communication receiver (20) comprises an antenna structure (22) and a joint searcher and channel estimator (24). The antenna structure acquires dimensionally differentiated signals which are concurrently utilized by the joint searcher and channel estimator for determining both a time of arrival and channel coefficient. The wireless communication receiver can be either a mobile terminal or a network node (e.g., a radio access network node such as a base station node, also called Node-B). In “spatial” embodiments, the antenna structure comprises an array of plural antennas. The signals acquired by different antennas of the array are dimensionally differentiated with regard to a spatial dimension, and the time of arrival and a composite channel coefficient are essentially concurrently determined by the joint searcher and channel estimator.

Abstract: The present invention relates to an improved radio resource management in a telecommunication network. This is achieved by means of improving the information that is provided to the responsible resource management units. Such improvement is achieved by collecting various types of information from various sources and by refining said information in order to achieve an increased predictability of parameters that determine the resource needs of the network.

Abstract: A wireless communication receiver comprises an antenna array and a joint searcher and channel estimator. Plural antenna elements of the array provide respective plural series of signals for successive sets of pilot data. The joint searcher and channel estimator essentially concurrently considers the plural series of signals provided by the plural antennas for determining both a time of arrival and channel coefficient. The joint searcher and channel estimator applies the channel coefficient and the time of arrival to a detector which provides, e.g., a symbol estimate.

Abstract: A wireless communication receiver (20) comprises an antenna structure (22) and a joint searcher and channel estimator (24). The antenna structure acquires dimensionally differentiated signals which are concurrently utilized by the joint searcher and channel estimator for determining both a time of arrival and channel coefficient. The wireless communication receiver can be either a mobile terminal or a network node (e.g., a radio access network node such as a base station node, also called Node-B). In “spatial” embodiments, the antenna structure comprises an array of plural antennas. The signals acquired by different antennas of the array are dimensionally differentiated with regard to a spatial dimension, and the time of arrival and a composite channel coefficient are essentially concurrently determined by the joint searcher and channel estimator.

Abstract: A wireless communication receiver (20) comprises an antenna array (22) and a joint searcher and channel estimator (24). Plural antenna elements of the array provide respective plural signals (indicative of one or more arriving wavefronts) to the joint searcher and channel estimator. The joint searcher and channel estimator essentially concurrently considers the plural signals provided by the plural antennas for determining both a time of arrival and composite channel coefficient for each wavefront. The joint searcher and channel estimator applies the channel coefficient and the time of arrival to a detector which provides, e.g., a symbol estimate. Since it contemporaneously processes the signals from plural antennas over a sampling window in order to determine both time of arrival and the channel coefficient, the joint searcher and channel estimator (24) is considered a two dimensional unit. A first dimension is with reference to a time index of the sampling window, i.e., a sampling window time index.

Abstract: A wireless communication receiver (20) comprises a joint searcher and channel estimator (24) which provides a channel estimate which can take into consideration a doppler shift occasioned, e.g., by relative movement of a transmitter and the receiver or movement of a signal path-affecting object. In providing the channel estimate, the joint searcher and channel estimator essentially concurrently considers plural signals received by an antenna element of an array (22), the plural signals being obtained from a series of successive sets of pilot data as detected by the antenna element. The time of arrival and the channel coefficient are essentially concurrently determined by the joint searcher and channel estimator. The joint searcher and channel estimator applies the channel coefficient and the time of arrival to a detector which provides, e.g., a symbol estimate.

Abstract: The invention relates to a process for determining the relative velocity in the radial direction between two moving objects, using linear frequency modulation with continuous frequency sweeps. A problem in such processes lies in being clearly able. to determine the phase difference. According to the invention, a clear determination is realized by varying the period. length for successive frequency sweeps and using the difference in period length and corresponding phase change in determining the volocity.